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Thread: Philips HF3480 Bulb (a fluorescent replacement?)

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  1. #1

    Default Philips HF3480 Bulb (a fluorescent replacement?)

    The Philips HF3480 has a non-replaceable bulb. However, since the light cost over $100, I'm curious if I can replace it anyway.

    I've posted some pictures below. The light has an adjustable wide range of intensity. At all levels, (1-20), I've measure the voltage at 2.15V. The bulbs appear to be fluorescent tubes. They are glued into the bulb mount, but I'm thinking I could wire up and mount a different bulb if I could locate a reasonable replacement. Any ideas if there are suitable replacements?








    Any help is appreciated

  2. #2

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    Something must change as the brightness changes, no? 2.1 volts might be suitable for running some LEDs. The stock fluorescent cannot be replaced, but are there any other bulbs that are similar? Feeling adventurous?

  3. #3

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    You're certainly right, something must change. Not sure if it could be a duty cycle if there is constant voltage? I only measured on one of the red wires. When I get home tonight, I'm going to investigate the orange wire (visible in the third picture). Adventurous? Sure. I'm interested in learning and salvaging my wake-up light. I'll post any other characteristics I can discover that might clue us into a suitable alternative. Thanks for the reply. Again, any insight is appreciated.

  4. #4

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    My simple multimeter isn't telling me much about the orange wire, but I look at trying one of these bulbs: http://www.nam.lighting.philips.com/...pdf/p-5295.pdf

    More specifically, I think it may be this bulb: http://www.1000bulbs.com/product/4629/FC26-P26153.html
    Last edited by foreverepic; 04-13-2011 at 10:55 PM.

  5. #5

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    They sure do look right. Can you buy or salvage a base for it and solder the base into your light? I must say that I am puzzled about how they can gracefully dim a fluorescent tube. If you figure this out you'll be a hero to thousands of other wake-up light owners.

  6. #6

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    Updated: The new bulb came in and I installed it. Works great. Took a while to get the old bulb out, but it all went back together good and is working.

  7. #7
    Unenlightened
    Join Date
    Nov 2013
    Posts
    1

    Default Re: Philips HF3480 Bulb (a fluorescent replacement?)

    Hi, I bought a replacement bulb on Amazon (hasnt arrived yet) is it just a matter of replacing it like a normal bulb as people are mentioning glue?

    thanks

    Colin

    Quote Originally Posted by foreverepic View Post
    My simple multimeter isn't telling me much about the orange wire, but I look at trying one of these bulbs: http://www.nam.lighting.philips.com/...pdf/p-5295.pdf

    More specifically, I think it may be this bulb: http://www.1000bulbs.com/product/4629/FC26-P26153.html

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